, Volume 70, Issue 1, pp 69–79 | Cite as

Structural mutants of the W chromosome in Ephestia (Insecta, Lepidoptera)

  • W. Traut
  • A. Weith
  • G. Traut


Structural mutants of the W chromosome that are kept in laboratory strains are described using light and electron microscopic techniques. The series comprises a translocation, a deficiency, fusions, and W fragments. — Conclusions drawn from the mutants are the following: At least one half of the W serves no vital function and is dispensable. Female sex determination, if the W is involved at all, rests on the other half. The amount and form of heterochromatin in somatic interphase nuclei depends on the amount and location of the W chromosome material. The W inactivation in somatic cells does not spread to attached autosomal segments.


Somatic Cell Microscopic Technique Laboratory Strain Interphase Nucleus Vital Function 
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Copyright information

© Dr W. Junk Publishers 1986

Authors and Affiliations

  • W. Traut
    • 1
  • A. Weith
    • 1
  • G. Traut
    • 1
  1. 1.Institut für BiologieMedizinische Universität zu LübeckLübeck 1E R. Germany

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